What is calfactant (Infasurf)?

Calfactant is a lung surface acting agent, or "surfactant." It helps the lungs function normally. Calfactant is similar to the natural fluid in the lungs that helps maintain effective breathing.

Calfactant is used to treat or prevent respiratory distress syndrome (RDS) in a premature baby whose lungs have not fully developed.

Calfactant may also be used for other purposes not listed in this medication guide.

What are the possible side effects of calfactant (Infasurf)?

Calfactant causes few side effects. There is a possibility that the baby will have breathing difficulties during the calfactant treatment, and these problems may require further treatment by health care professionals. Your baby will remain under constant supervision during treatment with calfactant.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about calfactant (Infasurf)?

Your baby will receive this medication in a neonatal intensive care unit (NICU) or similar hospital setting.

Calfactant is given directly into the baby's lungs through a breathing tube that is also connected to a ventilator (a machine that moves air in and out of the lungs to help your baby breathe easier and get enough oxygen).

Your baby will remain under constant supervision during treatment with calfactant.